Preview

Biology Questions

Good Essays
Open Document
Open Document
2904 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Biology Questions
BIO 169 Ch. 20 S.G.

Name: __________________________ Date: _____________
1. The anatomical region found between the lungs that extends from the sternum to the vertebral column and from the first rib to the diaphragm.
A) Epicardium
B) Abdominal cavity
C) Pericardium
D) Mediastinum
E) Thoracic cavity
2. The membrane that surrounds and protects the heart is called the
A) pericardium.
B) pleura.
C) myocardium.
D) mediastinum.
E) endocardium.
3. The apex of the heart is normally pointed
A) at the midline.
B) to the left of the midline.
C) to the right of the midline.
D) is different for males and females
E) posteriorly.
4. The outermost layer of the pericardium, which consists of inelastic dense irregular connective tissue, is called the
A) parietal layer of pericardium.
B) serous pericardium.
C) fibrous pericardium.
D) epicardium.
E) endocardium.
5. This is used to reduce friction between the layers of membranes surrounding the heart.
A) Synovial fluid
B) Endocardium
C) Pleural fluid
D) Pericardial fluid
E) Capillary endothelium
6. This layer of the heart wall consists of mesothelium and connective tissue.
A) Epicardium
B) Myocardium
C) Endocardium
D) Fibrous pericardium
E) None of the answer selections are correct

Page 1

BIO 169 Ch. 20 S.G.

7. Which layer of the heart wall consists of cardiac muscle tissue?
A) Epicardium
B) Pericardium
C) Myocardium
D) Endocardium
E) Hypocardium
8. This pouch-like structure increases the total filling capacity of the atrium.
A) Ventricle
B) Coronary sulcus
C) Fossa ovalis
D) Interatrial septum
E) Auricle.
9. This groove found on the surface of the heart marks the boundary between the right and left ventricles.
A) Coronary sulcus
B) Anterior interventricular sulcus
C) Posterior interventricular sulcus
D) Coronary sinus
E) Anterior intraventricular sulcus
10. These muscular ridges are found on the anterior wall of the right atrium and extend into the auricles.
A)

You May Also Find These Documents Helpful

  • Good Essays

    3. This causes the right side of the heart to overwork, and it can’t handle doing both the left and right sides’ job.…

    • 679 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Biology

    • 1818 Words
    • 8 Pages

    1 2 3 What is the name of the central region of the thorax? The central region of the thorax is the mediastinum. About how much of the heart is to the left of the mid-sternal line? Two-thirds of the heart is to the left. Where is the location of the apex of the heart? The apex of the heart is located to the left at the fifth intercostal space.…

    • 1818 Words
    • 8 Pages
    Powerful Essays
  • Good Essays

    Answers Lab02 HeartAnatomy

    • 1176 Words
    • 13 Pages

    2. What is the function of the fluid that fills the pericardial sac? To reduce friction during heart activity…

    • 1176 Words
    • 13 Pages
    Good Essays
  • Good Essays

    The three major components of the cardiovascular system are the heart, blood vessels and the blood. The main function of the cardiovascular system is to maintain blood flow to all parts of the body, in order for it to survive. The heart is a hollow muscular organ that lies left of the middle of the chest, and is about the size of a fist. The heart wall is made up of three layers; the Pericardium, Myocardium and Endocardium. The pericardium is a fibrous covering wrapping around the whole heart. The pericardium holds the heart in place by anchoring it to the diaphragm and sternum, but still allowing some movement as the heart beats. The myocardium is the thick, middle layer of the heart and is composed of cardiac muscle. The endocardium is the…

    • 144 Words
    • 1 Page
    Good Essays
  • Satisfactory Essays

    The heart wall is formed from 3 different layers: Epicardium, Myocardium and Endocardium. The epicardium is the most-outer layer that covers the heart wall. It is a smooth thin layer of serous mem-brane that protects the outside of the heart. Under the epicardium, a thicker layer of muscles is covering the heart, the myocardium. The myocardium is the middle layer of the heart wall that contains the cardi-ac muscle tissue. It represents the bulk of the thickness and mass of the heart wall and is the part of the heart responsible cardiac contraction. Below the myocardium is the thin endocardium layer which is simple endothelium layer that lines the inside of the heart. The endocardium is very smooth and is re-sponsible for keeping blood from…

    • 222 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    Heart and Right Atrium

    • 2156 Words
    • 9 Pages

    The structure of the heart can vary among the different animal species. Cephalopods have two "gill hearts" and one "systemic heart". In vertebrates, the heart lies in the anterior part of the body cavity, dorsal to the gut. It is always surrounded by a pericardium, which is usually a distinct structure, but may be continuous with the peritoneum in jawless and cartilaginous fish. Hagfish, uniquely among vertebrates, also possess a second heart-like structure in the tail. It is located anterior to the vertebral column and posterior to the sternum.…

    • 2156 Words
    • 9 Pages
    Good Essays
  • Satisfactory Essays

    A 65-year-old patient was addmitted to the hospital with complaints of pain and disturbance of cardiac rhythm. After examination the diagnosis of blockade of Hiss bundle was made. What formation of the heart is it located in?…

    • 7111 Words
    • 29 Pages
    Satisfactory Essays
  • Better Essays

    The heart is located in the left side of the mediastinum; it consists of three muscle layers the Endocardium, myocardium, and epicardium. The epicardium is the outermost layer of the heart. The myocardium is the idle layer of and actual contracting muscle of the heart. The endocardium is the innermost layer and lines the inner chambers and heart valves.…

    • 1316 Words
    • 6 Pages
    Better Essays
  • Good Essays

    The Heart

    • 435 Words
    • 2 Pages

    The structure of the heart can vary among the different branches of the animal kingdom. Cephalopods have two gill hearts and one systemic heart. In vertebrates, the heart lies in the anterior part of the body cavity, dorsal to the gut. It is always surrounded by a pericardium, which is usually a distinct structure, but may be continuous with the peritoneum in jawless and cartilaginous fish. Hagfishes, uniquely among vertebrates, also possess a second heart-like structure in the tail. It is located anterior to the vertebral column and posterior to the sternum.…

    • 435 Words
    • 2 Pages
    Good Essays
  • Good Essays

    lamp lighting

    • 1323 Words
    • 4 Pages

    The heart sits within a fluid-filled cavity called the pericardial cavity. The walls and lining of the pericardial cavity are a special membrane known as the pericardium. Pericardium is a type of serous membrane that produces serous fluid to lubricate the heart and prevent friction between the ever beating heart and its surrounding organs. Besides lubrication, the pericardium serves to hold the heart in position and maintain a hollow space for the heart to expand into when it is full. The pericardium has 2 layers—a visceral layer that covers the outside of the heart and a parietal layer that forms a sac around the outside of the pericardial cavity.…

    • 1323 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Caleb's Heart Case Study

    • 1245 Words
    • 5 Pages

    a. Due to this defect would you expect the blood to move from left-to-right ventricle or right-to-left ventricle during systole?…

    • 1245 Words
    • 5 Pages
    Good Essays
  • Powerful Essays

    cardiac tumors

    • 9291 Words
    • 38 Pages

    The outer wall of the human heart is composed of three layers. The outer layer is called the epicardium, or visceral pericardium since it is also the inner wall of the pericardium. The middle layer is called the myocardium and is composed of muscle which contracts. The inner layer is called the endocardium and is in contact with the blood that the heart pumps. Also, it merges with the inner lining (endothelium) of blood vessels and covers heart valves…

    • 9291 Words
    • 38 Pages
    Powerful Essays
  • Satisfactory Essays

    Directions: Go to Real Anatomy and select Cardiovascular. Use the dissection man to f ind the appropriate…

    • 314 Words
    • 7 Pages
    Satisfactory Essays
  • Good Essays

    2. What compensatory mechanisms are likely to be operative in A.O. to enhance cardiac output?…

    • 680 Words
    • 3 Pages
    Good Essays
  • Good Essays

    20. left coronary artery 21. circumflex artery 22. anterior interventricular artery 23. apex of heart 24. great cardiac vein…

    • 861 Words
    • 4 Pages
    Good Essays